study - robtex.com
study
(root)
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.root-servers.net ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | c.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | d.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | e.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | f.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | g.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | h.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | i.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | j.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | k.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | l.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | m.root-servers.net ⚠️ Not in parent delegation | ||||||
| SOA | a.root-servers.netnstld@verisign-grs.com 2026-10-12 #1 | ||||||
Subdomains
Same first word
Similar names
Previous names
DNS History
9 records (6 active, 3 former)
○NSd.nic.study2015-05-13 → 2017-08-19 · 4 obs
● 2017-08-19 11:55:26
○ 2026-02-14 19:10:06
○ 2026-10-13 02:16:18
●NSx.nic.study2026-02-14 → 2026-10-13 · 3 obs
● 2026-02-14 19:10:06
● 2026-10-13 02:16:18
●NSy.nic.study2026-02-14 → 2026-10-13 · 3 obs
● 2026-02-14 19:10:06
● 2026-10-13 02:16:18
●NSz.nic.study2026-02-14 → 2026-10-13 · 3 obs
● 2026-02-14 19:10:06
● 2026-10-13 02:16:18
○MXyour-dns-needs-immediate-attention.study2015-05-13 → 2015-05-13 · 3 obs
○ 2015-09-22 02:49:16
○ 2026-10-13 02:16:18
○A127.0.53.532015-05-13 → 2015-05-13 · 3 obs
○ 2015-09-22 02:49:16
○ 2026-10-13 02:16:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | a.nic.study, z.nic.study, y.nic.study, x.nic.study... | 12 records |
✅ Authoritative Response
Server:37.209.194.10
NS records: a.nic.study, z.nic.study, y.nic.study, x.nic.study, c.nic.study, b.nic.study
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 484ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 6 | x.nic.study, y.nic.study... |
| SOA | 1 | a.nic.study admin.tldns.godaddy |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.study, y.nic.study, x.nic.study...)
Analysis
Hierarchy
The domain study is parent to ultraconcierge.study, ovvebm.study, jfsprj.study, awqjdzv.study, prisonfellowship.study and tens of thousands of other host names beneath it.
Name Servers
study is served by 6 authoritative name servers — among them a.nic.study, b.nic.study, c.nic.study and 3 others.
study is at least partially co-delegated on name servers with other domains, such as nic.study.
The name servers x.nic.study, y.nic.study and z.nic.study are often found in combination with these name servers.
Hostnames that resolve to two IP addresses:
a.nic.study resolves to two addresses: 37.209.192.10 and 2001:dcd:1::10.
b.nic.study resolves to two addresses: 37.209.194.10 and 2001:dcd:2::10.
c.nic.study resolves to two addresses: 37.209.196.10 and 2001:dcd:3::10.
x.nic.study resolves to two addresses: 156.154.172.82 and 2610:a1:1074::1:82.
y.nic.study resolves to two addresses: 156.154.173.82 and 2610:a1:1075::1:82.
z.nic.study resolves to two addresses: 156.154.174.82 and 2610:a1:1076::1:82.